US9265519B2 - Tunnel notcher and guidewire delivery device - Google Patents

Tunnel notcher and guidewire delivery device Download PDF

Info

Publication number
US9265519B2
US9265519B2 US13/282,950 US201113282950A US9265519B2 US 9265519 B2 US9265519 B2 US 9265519B2 US 201113282950 A US201113282950 A US 201113282950A US 9265519 B2 US9265519 B2 US 9265519B2
Authority
US
United States
Prior art keywords
bone
tunnel
guidewire
delivery device
notcher
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US13/282,950
Other versions
US20120041442A1 (en
Inventor
Richard F. Wenstrom, Jr.
II Robert K. Breech
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DePuy Mitek LLC
Original Assignee
DePuy Mitek LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DePuy Mitek LLC filed Critical DePuy Mitek LLC
Priority to US13/282,950 priority Critical patent/US9265519B2/en
Publication of US20120041442A1 publication Critical patent/US20120041442A1/en
Application granted granted Critical
Publication of US9265519B2 publication Critical patent/US9265519B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/320036—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes adapted for use within the carpal tunnel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1635—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for grafts, harvesting or transplants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1735—Guides or aligning means for drills, mills, pins or wires for rasps or chisels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1714—Guides or aligning means for drills, mills, pins or wires for applying tendons or ligaments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8897—Guide wires or guide pins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
    • A61B2017/00424—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping ergonomic, e.g. fitting in fist
    • A61B2019/462—
    • A61B2019/547—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/062—Measuring instruments not otherwise provided for penetration depth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/397—Markers, e.g. radio-opaque or breast lesions markers electromagnetic other than visible, e.g. microwave

Definitions

  • the present invention relates to methods and devices for repairing torn and/or damaged tissue, and in particular to methods and devices for creating a notch and positioning a guidewire within a bone tunnel.
  • Ligaments are tough bands of tissue which serve to connect the articular extremities of bones, or to support or retain organs in place within the body.
  • Ligaments are typically composed of coarse bundles of dense white fibrous tissue which are disposed in a parallel or closely interlaced manner, with the fibrous tissue being pliant and flexible, but not significantly extensible.
  • ligaments are torn or ruptured as a result of accidents or overexertion. Accordingly, various procedures have been developed to repair or replace such damaged ligaments.
  • the anterior and posterior cruciate ligaments i.e., the ACL and PCL
  • the ACL and PCL cooperate, together with other ligaments and soft tissue, to provide both static and dynamic stability to the knee.
  • the ACL is ruptured or torn as a result of, for example, a sports-related injury. Consequently, various surgical procedures have been developed for reconstructing the ACL so as to restore normal function to the knee.
  • the ACL may be reconstructed by replacing the ruptured ACL with a graft ligament.
  • bone tunnels are typically formed in the top end of the tibia and the bottom end of the femur, and one end of the graft ligament is positioned in the femoral bone tunnel and the other end of the graft ligament is positioned in the tibial bone tunnel.
  • the graft ligament thus extends between the femur and the tibia in substantially the same way, and with substantially the same function, as the original ACL, thereby allowing the graft ligament to cooperate with the surrounding anatomical structures so as to restore normal function to the knee.
  • the two ends of the graft ligament are typically attached to an anchoring member, such as a bone plug, that is inserted into a bone tunnel.
  • an anchoring member such as a bone plug
  • Bone screws or similar fasteners are often used to maintain each bone plug within its respective tunnel.
  • Such a procedure typically requires a recess to be formed in the bone adjacent to the bone tunnel to allow the bone screw to be inserted alongside the bone plug.
  • the recess serves as a “starter hole” for the bone screw so that the screw can engage bone in a generally proper direction with respect to the bone tunnel.
  • ACL repair is typically performed arthroscopically
  • the current procedure for forming a bone recess requires the surgeon to estimate the best location for positioning the bone screw adjacent to the bone plug.
  • current devices for forming a recess in a bone tunnel have a relatively large size that requires that the recess be formed before the bone plug is inserted into the tunnel, thus the surgeon cannot determine the best location for the recess, and consequently for the bone screw, in relation to the bone plug.
  • a guidewire must be positioned between the anchoring member and a sidewall of the bone tunnel for delivering a bone screw to the tunnel at a location adjacent to the recess.
  • the present invention generally provides a tunnel notcher and guidewire delivery device for creating a notch and positioning a guidewire within a bone tunnel.
  • the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween and adapted to receive a guidewire.
  • the device also includes a cutting element that is disposed on a distal portion of the elongate member and that is adapted to remove bone within an opening of a bone tunnel.
  • a handle member can be disposed on or mated to a proximal portion of the elongate member.
  • the device can also optionally include a locking mechanism that is adapted to lock a guidewire extending through the lumen in the elongate member in a releasably fixed position with respect to the elongate member.
  • the locking mechanism can include, for example, a threaded member, such as a set screw, that is disposed within a threaded bore formed in the handle. The threaded bore is in communication with the inner lumen of the elongate member and it allows the set screw to secure the guidewire in the releasably fixed position.
  • the cutting element on the elongate member can be disposed at a variety of locations on the device, but in one embodiment, it is located on a distal portion of the distal end of the elongate member, and more preferably it is disposed proximal to the distal end of the elongate member.
  • the cutting element can also have a variety of configurations, shapes, and sizes, but in an exemplary embodiment it is substantially wedge-shaped and extends distally outward from the elongate member.
  • the cutting element includes a distal-facing surface that is positioned at an acute angle with respect to a longitudinal axis of the elongate member. More preferably, the cutting element is adapted to create a notch in bone having a substantially semi-circular shape such that the notch is effective to facilitate placement of a bone screw within a bone tunnel for securing a bone plug therein.
  • the present invention also provides methods for preparing a bone tunnel.
  • the method includes the steps of positioning a tunnel notcher and guidewire delivery device between a bone plug and a sidewall of a bone tunnel and manipulating the device such that the cutting element removes a portion of bone to create a notch in or adjacent to an opening of the bone tunnel.
  • the tunnel notcher and guidewire delivery device is then removed leaving a guidewire positioned between the bone plug and the bone tunnel adjacent to the notch.
  • a bone screw can then be delivered along the guidewire to engage bone at the notch, and thereby secure the bone plug within the bone tunnel.
  • FIG. 1 is a perspective view of one embodiment of a tunnel notcher and guidewire delivery device according to the present invention
  • FIG. 2A is an enlarged view of a cutting element on the tunnel notcher and guidewire delivery device shown in FIG. 1 ;
  • FIG. 2B is a side, cross-sectional view of the cutting element shown in FIG. 2A taken along a longitudinal axis of the tunnel notcher and guidewire delivery device;
  • FIG. 2C is an end view of the tunnel notcher and guidewire delivery device shown in FIG. 1 ;
  • FIG. 3A is cross-sectional view of a locking mechanism on the tunnel notcher and guidewire delivery device shown in FIG. 1 ;
  • FIG. 3B is a cross-sectional view of the locking mechanism shown in FIG. 3A in the locked position
  • FIG. 4A is an illustration of a human knee having a bone tunnel formed therein;
  • FIG. 4B is an illustration of the human knee shown in FIG. 4A with a tunnel notcher and guidewire delivery device in accordance with the present invention being introduced into the bone tunnel;
  • FIG. 4C is an illustration showing the tunnel notcher and guidewire delivery device of FIG. 4B disposed within the bone tunnel to remove bone, forming a notch within the opening of the bone tunnel;
  • FIG. 4D is an illustration showing the tunnel notcher and guidewire delivery device of FIG. 4C removed from the bone tunnel, leaving a guide wire positioned within the bone tunnel adjacent to the notch;
  • FIG. 4E is an illustration showing a bone screw being delivered along the guide wire shown in FIG. 4D to the bone tunnel in accordance with another embodiment of the present invention.
  • the present invention provides a device for creating a notch in a bone tunnel, and for positioning a guidewire within the bone tunnel.
  • the device 10 includes an elongate member 12 having an inner lumen 12 c extending therethrough and adapted to receive a guidewire 16 .
  • a cutting element 18 is formed on or adjacent to a distal portion 13 of the elongate member 12 , and it is effective to remove bone within or adjacent to an opening of a bone tunnel.
  • the device 10 can also include a handle 14 mated to or formed on a proximal end 12 a of the elongate member 12 for grasping the device 10 .
  • the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18 .
  • the device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch.
  • the guidewire 16 can subsequently be used to deliver a fastening element, such as a bone screw, to the notch, thus allowing the bone screw to be threaded into the bone tunnel to secure the bone plug or other anchoring member within the tunnel.
  • the methods and devices of the present invention are particularly advantageous in that they allow a surgeon to remove bone to form a notch within or adjacent to an opening of a bone tunnel after a bone plug or other anchoring member has been positioned in the bone tunnel, thereby ensuring proper positioning of the notch and subsequently of a fastening element with respect to the bone plug.
  • the device 10 also eliminates the additional step of positioning a guidewire after the notch is formed since the guidewire is implanted using the tunnel notcher and guidewire delivery device, thus further providing proper alignment of the bone screw with the notch and the bone plug or other anchoring member disposed within the bone tunnel.
  • the elongate member 12 of the tunnel notcher and guidewire delivery device 10 can have a variety of configurations, shapes, and sizes. As shown in FIG. 1 , however, the elongate member 12 has a generally hollow cylindrical shape and it includes proximal and distal ends 12 a , 12 b with an inner lumen 12 c extending therebetween for slidably receiving a guidewire 16 .
  • the length l e of the elongate member 12 can vary, but it should be sufficient to allow the proximal end 12 a of the elongate member 12 to remain outside a patient's body while the distal end 12 b is positioned within a bone tunnel, preferably between a bone plug or other anchoring member and a sidewall of the bone tunnel.
  • FIG. 1 illustrates a generally elongate handle 14 that extends in a direction that is substantially transverse to a longitudinal axis L of the elongate member 12 .
  • Opposed gripping portions 14 a , 14 b can be formed on the handle 14 to conform to a user's fingers.
  • a distal-facing surface 15 of each gripping portion 14 a , 14 b can be substantially concave for seating one or more fingers of the user. This allows the user to grasp the device 10 by positioning their fingers around the handle 14 so as to form a fist.
  • a person skilled in the art will appreciate that a variety of handles or other devices can be used to facilitate grasping of the device 10 .
  • the distal end 12 b of the elongate member 12 can also have a variety of configurations, but it should be adapted to be positioned between a bone tunnel and a bone plug or other anchoring member.
  • the distal end 12 b is also preferably configured such that at least a portion of it can be inserted into the bone tunnel to a particular depth to facilitate the correct positioning of the cutting element 18 with respect to the bone tunnel.
  • the distal end 12 b has a tapered tip 20 such that a diameter of the tip 20 decreases in a proximal to distal direction. This facilitates insertion of the distal end 12 b between the sidewall of the bone tunnel and the anchoring member.
  • the distal end 12 b can also include markings 22 or other indicia disposed or formed thereon, as shown in FIGS. 1 and 2A , to indicate an insertion depth of the distal end 12 b of the elongate member 12 into a bone tunnel.
  • the markings 22 which are preferably located proximal to the cutting element 18 , can optionally extend circumferentially around the elongate member 12 to facilitate visual access thereof.
  • the markings 22 are radio-opaque to allow x-ray visualization thereof during an arthroscopic procedure.
  • the device 10 also includes a cutting element 18 that is formed on a distal portion 13 of the elongate member 12 .
  • the cutting element 18 which is shown in more detail in FIGS. 2A-2C , can have any configuration and it can be disposed anywhere on the elongate member, but it should be effective to remove bone to form a notch adjacent to or within an opening of a bone tunnel.
  • the cutting element 18 is positioned proximal to the distal end 12 b of the elongate member 12 , preferably just proximal to the tapered tip 20 , to allow the tapered tip 20 to be disposed into a bone tunnel between a sidewall of the bone tunnel and a bone plug or other anchoring member disposed therein.
  • the cutting element is also preferably disposed on one side of the elongate member 12 , such that it is offset from the longitudinal axis L of the elongate member 12 .
  • the cutting element 18 can have a length l c ( FIG. 2C ) that is less than or equal to a diameter D of the elongate member 12 . Such a configuration will allow the cutting element 18 to remove bone from the bone tunnel without coming into contact with and/or causing damage to the bone plug or other anchoring member disposed within the bone tunnel.
  • the shape and size of the cutting element 18 can also vary, but in an exemplary embodiment it is substantially wedge-shaped such that it has a width w c that increases in a proximal to distal direction.
  • a base portion 18 b of the cutting element 18 is mated to or formed on the elongate member 12 , and a cutting edge 18 a is positioned a distance d apart from the elongate member 12 .
  • the distance d ( FIG. 2C ) between the cutting edge 18 a and the elongate member 12 can vary, but it should be sufficient to allow a portion of bone adjacent to or within a bone tunnel to be removed such that a notch is created for receiving a bone screw.
  • the cutting edge 18 a is also preferably positioned at a location that is distal of the base portion 18 b with respect to the longitudinal axis L of the elongate member 12 .
  • This can be achieved by providing a distal-facing surface 18 c on the cutting element 18 that extends between the cutting edge 18 a and the elongate member 12 , and that is positioned at an acute angle ⁇ with respect to the longitudinal axis L of the elongate member 12 .
  • the angle ⁇ can vary, in an exemplary embodiment, the angle ⁇ is in the range of about 20° to 70°.
  • the distal-facing surface 18 c can also optionally be substantially concave such that opposed edges 19 a , 19 b of the cutting element 18 form cutting edges that are effective to remove bone.
  • the cutting edge 18 a can have a substantially arcuate shape, such that the distance d between the cutting edge 18 a and the elongate member 12 remains substantially constant along the entire length l c of the cutting edge 18 a .
  • Such curvature of the cutting edge 18 a will facilitate removal of bone, and in particular it will allow a semi-circular notch to be formed in bone.
  • the tunnel notcher and guidewire delivery device 10 includes an inner lumen 12 c that extends through the elongate member 12 and the handle 14 for receiving a guidewire. Since the guidewire is preferably positioned within the inner lumen 12 c during use of the device 10 , the device 10 can optionally include a locking mechanism 24 formed thereon for maintaining a guidewire in a fixed position relative to the elongate member 12 . While a variety of locking mechanisms known in the art can be used, FIGS. 1 and 3 A- 3 B illustrate an exemplary embodiment of a locking mechanism 24 that is formed on the handle 14 of the elongate member 12 .
  • the locking mechanism 24 is in the form of a set screw 28 that is disposed within a threaded bore 26 formed in handle 14 .
  • the threaded bore 26 is in communication with the inner lumen 12 c of the elongate member 12 .
  • the set screw 28 can be threaded into the threaded bore 26 to engage a guidewire 16 that is disposed within the inner lumen 12 c of the elongate member 12 , thereby locking the guidewire 16 in a fixed position.
  • the tunnel notcher and guidewire delivery device 10 of the present invention can be used in a variety of medical procedures for preparing a bone tunnel for receiving a fastening element, such as a bone screw, to secure an anchoring member disposed within the bone tunnel.
  • the device 10 is used to prepare a bone tunnel for anchoring a ligament therein, and in particular for arthroscopic femoral fixation of an anterior cruciate ligament (ACL) graft, as shown in FIGS. 4A-4E .
  • ACL anterior cruciate ligament
  • the graft ligament (not shown) is typically prepared by separating the graft into four tendon bundles, each of which is prepared by whip stitching a length of suture thereto. Two anchoring members, such as bone plugs, are then attached at each end of the ligament.
  • FIGS. 4A-4E only show a bone tunnel 56 formed in the femoral bone 54 , however, a person skilled in the art will appreciate that the device and methods of the present invention can be inserted through either or both of the femoral and tibial bones.
  • FIGS. 4A-4E only show a bone plug 53 disposed within the femoral bone tunnel 56 , and a graft ligament is not shown.
  • a guidewire 16 is inserted through the device 10 of the present invention, preferably such that a portion of the guidewire 16 extends from the distal end 12 b of the elongate member 12 to facilitate insertion of the distal tip 20 of the device 10 into the bone tunnel 56 between the bone plug 53 and a sidewall of the bone tunnel 56 .
  • the guidewire 16 is preferably locked in fixed position by rotating the set screw 28 of the locking mechanism 24 . Since most guidewires are relatively flexible, it is preferable to only have a small portion of the guidewire 16 extend from the distal end 12 b of the elongate member 12 to provide rigidity to the guidewire 16 .
  • the device 10 can then be inserted through the tibial bone tunnel 56 to position the tapered tip 20 of the elongate member 12 between the bone plug 53 and the femoral bone tunnel 56 , as illustrated in FIGS. 4B and 4C .
  • a mallet or other impacting tool can optionally be used to further impact the device 10 to advance it into the area between the bone plug 53 and the bone tunnel 56 to a desired depth.
  • the radio-opaque markings 22 near the distal end 12 b of the elongate member 12 can be used to indicate when the device 10 is at the correct depth.
  • the device 10 is partially rotated about its longitudinal axis L such that cutting edge 18 a of the cutting element 18 moves in a semi-circular direction, thereby removing a portion of bone to create a notch 58 .
  • the notch 58 is formed within or adjacent to an opening of the bone tunnel 56 .
  • the locking mechanism 24 is released by rotating the set screw 28 in the opposite direction, allowing the device 10 to be removed while leaving the guidewire 16 positioned within the bone tunnel 56 , as illustrated by FIG. 4D , between the bone plug 53 and adjacent to the notch 58 .
  • a fastening element such as a bone screw 80 , as shown in FIG. 4E , can then be delivered by sliding the screw 80 along the guidewire 16 toward the notch 58 .
  • An insertion tool or driver mechanism 70 can optionally be used to advance the screw 80 along the guidewire 16 , and to thread the screw 80 into the bone tunnel 56 .
  • the notch 58 will allow the threads of the bone screw 80 to engage the bone, and thus further rotation of the screw 80 will secure the bone plug 53 in the bone tunnel 56 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

A tunnel notcher and guidewire delivery device is provided for creating a notch and positioning a guidewire within a bone tunnel. In general, the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween that is adapted to receive a guidewire. The device also includes a cutting element disposed on a distal portion of the elongate member that is adapted to remove bone within an opening of a bone tunnel. In use, the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18. The device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch.

Description

CROSS REFERENCE TO RELATED APPLICATIONS
This application is a divisional application of U.S. patent application Ser. No. 10/708,467, entitled TUNNEL NOTCHER AND GUIDEWIRE DEVICE, filed Mar. 5, 2004, which is incorporated herein by reference.
FIELD OF THE INVENTION
The present invention relates to methods and devices for repairing torn and/or damaged tissue, and in particular to methods and devices for creating a notch and positioning a guidewire within a bone tunnel.
BACKGROUND OF THE INVENTION
Ligaments are tough bands of tissue which serve to connect the articular extremities of bones, or to support or retain organs in place within the body. Ligaments are typically composed of coarse bundles of dense white fibrous tissue which are disposed in a parallel or closely interlaced manner, with the fibrous tissue being pliant and flexible, but not significantly extensible.
In many cases, ligaments are torn or ruptured as a result of accidents or overexertion. Accordingly, various procedures have been developed to repair or replace such damaged ligaments. For example, in the human knee, the anterior and posterior cruciate ligaments (i.e., the ACL and PCL) extend between the top end of the tibia and the bottom end of the femur. The ACL and PCL cooperate, together with other ligaments and soft tissue, to provide both static and dynamic stability to the knee. Often, the ACL is ruptured or torn as a result of, for example, a sports-related injury. Consequently, various surgical procedures have been developed for reconstructing the ACL so as to restore normal function to the knee.
In many instances, the ACL may be reconstructed by replacing the ruptured ACL with a graft ligament. More particularly, with such procedures, bone tunnels are typically formed in the top end of the tibia and the bottom end of the femur, and one end of the graft ligament is positioned in the femoral bone tunnel and the other end of the graft ligament is positioned in the tibial bone tunnel. The graft ligament thus extends between the femur and the tibia in substantially the same way, and with substantially the same function, as the original ACL, thereby allowing the graft ligament to cooperate with the surrounding anatomical structures so as to restore normal function to the knee.
When anchoring a graft ligament to the tibia and the femur, the two ends of the graft ligament are typically attached to an anchoring member, such as a bone plug, that is inserted into a bone tunnel. Bone screws or similar fasteners are often used to maintain each bone plug within its respective tunnel. Such a procedure typically requires a recess to be formed in the bone adjacent to the bone tunnel to allow the bone screw to be inserted alongside the bone plug. The recess serves as a “starter hole” for the bone screw so that the screw can engage bone in a generally proper direction with respect to the bone tunnel. As the bone screw is threaded into the bone, the resulting interference fit between the bone plug and the bone screw secures the graft ligament in place in the bone tunnel.
Since ACL repair is typically performed arthroscopically, the current procedure for forming a bone recess requires the surgeon to estimate the best location for positioning the bone screw adjacent to the bone plug. In particular, current devices for forming a recess in a bone tunnel have a relatively large size that requires that the recess be formed before the bone plug is inserted into the tunnel, thus the surgeon cannot determine the best location for the recess, and consequently for the bone screw, in relation to the bone plug. Once the recess is formed, a guidewire must be positioned between the anchoring member and a sidewall of the bone tunnel for delivering a bone screw to the tunnel at a location adjacent to the recess. Since the guidewire is delivered after formation of the notch, the position of the guidewire is often estimated as well. Accordingly, these methods and devices can result in misalignment of the bone screw, thus resulting in a high rate of divergence between the bone screw and the bone tunnel, and often in a loss of bone plug fixation within the bone tunnel. Unfortunately, screw/tunnel divergence is usually only identified postoperatively via radiographs, and the loss of bone plug fixation cannot be readily corrected, thereby resulting in an unsuccessful repair of a ruptured ACL.
Thus, there remains a need for improved methods and devices for creating a notch and positioning a guidewire within a bone tunnel to provide an accurate, secure, and trouble-free fixation of a ligament within the bone tunnel.
SUMMARY OF THE INVENTION
The present invention generally provides a tunnel notcher and guidewire delivery device for creating a notch and positioning a guidewire within a bone tunnel. In one embodiment, the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween and adapted to receive a guidewire. The device also includes a cutting element that is disposed on a distal portion of the elongate member and that is adapted to remove bone within an opening of a bone tunnel. A handle member can be disposed on or mated to a proximal portion of the elongate member. The device can also optionally include a locking mechanism that is adapted to lock a guidewire extending through the lumen in the elongate member in a releasably fixed position with respect to the elongate member. The locking mechanism can include, for example, a threaded member, such as a set screw, that is disposed within a threaded bore formed in the handle. The threaded bore is in communication with the inner lumen of the elongate member and it allows the set screw to secure the guidewire in the releasably fixed position.
The cutting element on the elongate member can be disposed at a variety of locations on the device, but in one embodiment, it is located on a distal portion of the distal end of the elongate member, and more preferably it is disposed proximal to the distal end of the elongate member. The cutting element can also have a variety of configurations, shapes, and sizes, but in an exemplary embodiment it is substantially wedge-shaped and extends distally outward from the elongate member. In an exemplary embodiment, the cutting element includes a distal-facing surface that is positioned at an acute angle with respect to a longitudinal axis of the elongate member. More preferably, the cutting element is adapted to create a notch in bone having a substantially semi-circular shape such that the notch is effective to facilitate placement of a bone screw within a bone tunnel for securing a bone plug therein.
The present invention also provides methods for preparing a bone tunnel. In one embodiment, the method includes the steps of positioning a tunnel notcher and guidewire delivery device between a bone plug and a sidewall of a bone tunnel and manipulating the device such that the cutting element removes a portion of bone to create a notch in or adjacent to an opening of the bone tunnel. The tunnel notcher and guidewire delivery device is then removed leaving a guidewire positioned between the bone plug and the bone tunnel adjacent to the notch. A bone screw can then be delivered along the guidewire to engage bone at the notch, and thereby secure the bone plug within the bone tunnel.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of one embodiment of a tunnel notcher and guidewire delivery device according to the present invention;
FIG. 2A is an enlarged view of a cutting element on the tunnel notcher and guidewire delivery device shown in FIG. 1;
FIG. 2B is a side, cross-sectional view of the cutting element shown in FIG. 2A taken along a longitudinal axis of the tunnel notcher and guidewire delivery device;
FIG. 2C is an end view of the tunnel notcher and guidewire delivery device shown in FIG. 1;
FIG. 3A is cross-sectional view of a locking mechanism on the tunnel notcher and guidewire delivery device shown in FIG. 1;
FIG. 3B is a cross-sectional view of the locking mechanism shown in FIG. 3A in the locked position;
FIG. 4A is an illustration of a human knee having a bone tunnel formed therein;
FIG. 4B is an illustration of the human knee shown in FIG. 4A with a tunnel notcher and guidewire delivery device in accordance with the present invention being introduced into the bone tunnel;
FIG. 4C is an illustration showing the tunnel notcher and guidewire delivery device of FIG. 4B disposed within the bone tunnel to remove bone, forming a notch within the opening of the bone tunnel;
FIG. 4D is an illustration showing the tunnel notcher and guidewire delivery device of FIG. 4C removed from the bone tunnel, leaving a guide wire positioned within the bone tunnel adjacent to the notch; and
FIG. 4E is an illustration showing a bone screw being delivered along the guide wire shown in FIG. 4D to the bone tunnel in accordance with another embodiment of the present invention.
 DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a device for creating a notch in a bone tunnel, and for positioning a guidewire within the bone tunnel. In general, as shown in FIG. 1, the device 10 includes an elongate member 12 having an inner lumen 12 c extending therethrough and adapted to receive a guidewire 16. A cutting element 18 is formed on or adjacent to a distal portion 13 of the elongate member 12, and it is effective to remove bone within or adjacent to an opening of a bone tunnel. The device 10 can also include a handle 14 mated to or formed on a proximal end 12 a of the elongate member 12 for grasping the device 10. In use, the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18. The device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch. The guidewire 16 can subsequently be used to deliver a fastening element, such as a bone screw, to the notch, thus allowing the bone screw to be threaded into the bone tunnel to secure the bone plug or other anchoring member within the tunnel.
The methods and devices of the present invention are particularly advantageous in that they allow a surgeon to remove bone to form a notch within or adjacent to an opening of a bone tunnel after a bone plug or other anchoring member has been positioned in the bone tunnel, thereby ensuring proper positioning of the notch and subsequently of a fastening element with respect to the bone plug. The device 10 also eliminates the additional step of positioning a guidewire after the notch is formed since the guidewire is implanted using the tunnel notcher and guidewire delivery device, thus further providing proper alignment of the bone screw with the notch and the bone plug or other anchoring member disposed within the bone tunnel.
Still referring to FIG. 1, the elongate member 12 of the tunnel notcher and guidewire delivery device 10 can have a variety of configurations, shapes, and sizes. As shown in FIG. 1, however, the elongate member 12 has a generally hollow cylindrical shape and it includes proximal and distal ends 12 a, 12 b with an inner lumen 12 c extending therebetween for slidably receiving a guidewire 16. The length le of the elongate member 12 can vary, but it should be sufficient to allow the proximal end 12 a of the elongate member 12 to remain outside a patient's body while the distal end 12 b is positioned within a bone tunnel, preferably between a bone plug or other anchoring member and a sidewall of the bone tunnel.
The proximal end 12 a of the elongate member 12 preferably has a handle 14 mated thereto or formed thereon to facilitate grasping the device 10. While the handle 14 can have any shape and size, FIG. 1 illustrates a generally elongate handle 14 that extends in a direction that is substantially transverse to a longitudinal axis L of the elongate member 12. Opposed gripping portions 14 a, 14 b, can be formed on the handle 14 to conform to a user's fingers. In particular, a distal-facing surface 15 of each gripping portion 14 a, 14 b, can be substantially concave for seating one or more fingers of the user. This allows the user to grasp the device 10 by positioning their fingers around the handle 14 so as to form a fist. A person skilled in the art will appreciate that a variety of handles or other devices can be used to facilitate grasping of the device 10.
The distal end 12 b of the elongate member 12 can also have a variety of configurations, but it should be adapted to be positioned between a bone tunnel and a bone plug or other anchoring member. The distal end 12 b is also preferably configured such that at least a portion of it can be inserted into the bone tunnel to a particular depth to facilitate the correct positioning of the cutting element 18 with respect to the bone tunnel. In an exemplary embodiment, shown in FIGS. 2A and 2B, the distal end 12 b has a tapered tip 20 such that a diameter of the tip 20 decreases in a proximal to distal direction. This facilitates insertion of the distal end 12 b between the sidewall of the bone tunnel and the anchoring member. The distal end 12 b can also include markings 22 or other indicia disposed or formed thereon, as shown in FIGS. 1 and 2A, to indicate an insertion depth of the distal end 12 b of the elongate member 12 into a bone tunnel. The markings 22, which are preferably located proximal to the cutting element 18, can optionally extend circumferentially around the elongate member 12 to facilitate visual access thereof. In an exemplary embodiment, the markings 22 are radio-opaque to allow x-ray visualization thereof during an arthroscopic procedure.
As previously stated, the device 10 also includes a cutting element 18 that is formed on a distal portion 13 of the elongate member 12. The cutting element 18, which is shown in more detail in FIGS. 2A-2C, can have any configuration and it can be disposed anywhere on the elongate member, but it should be effective to remove bone to form a notch adjacent to or within an opening of a bone tunnel. In an exemplary embodiment, as shown, the cutting element 18 is positioned proximal to the distal end 12 b of the elongate member 12, preferably just proximal to the tapered tip 20, to allow the tapered tip 20 to be disposed into a bone tunnel between a sidewall of the bone tunnel and a bone plug or other anchoring member disposed therein. The cutting element is also preferably disposed on one side of the elongate member 12, such that it is offset from the longitudinal axis L of the elongate member 12. In particular, the cutting element 18 can have a length lc (FIG. 2C) that is less than or equal to a diameter D of the elongate member 12. Such a configuration will allow the cutting element 18 to remove bone from the bone tunnel without coming into contact with and/or causing damage to the bone plug or other anchoring member disposed within the bone tunnel.
The shape and size of the cutting element 18 can also vary, but in an exemplary embodiment it is substantially wedge-shaped such that it has a width wc that increases in a proximal to distal direction. A base portion 18 b of the cutting element 18 is mated to or formed on the elongate member 12, and a cutting edge 18 a is positioned a distance d apart from the elongate member 12. The distance d (FIG. 2C) between the cutting edge 18 a and the elongate member 12 can vary, but it should be sufficient to allow a portion of bone adjacent to or within a bone tunnel to be removed such that a notch is created for receiving a bone screw. The cutting edge 18 a is also preferably positioned at a location that is distal of the base portion 18 b with respect to the longitudinal axis L of the elongate member 12. This can be achieved by providing a distal-facing surface 18 c on the cutting element 18 that extends between the cutting edge 18 a and the elongate member 12, and that is positioned at an acute angle α with respect to the longitudinal axis L of the elongate member 12. While the angle α can vary, in an exemplary embodiment, the angle α is in the range of about 20° to 70°. The distal-facing surface 18 c can also optionally be substantially concave such that opposed edges 19 a, 19 b of the cutting element 18 form cutting edges that are effective to remove bone.
In another embodiment, the cutting edge 18 a can have a substantially arcuate shape, such that the distance d between the cutting edge 18 a and the elongate member 12 remains substantially constant along the entire length lc of the cutting edge 18 a. Such curvature of the cutting edge 18 a will facilitate removal of bone, and in particular it will allow a semi-circular notch to be formed in bone.
As previously stated, the tunnel notcher and guidewire delivery device 10 includes an inner lumen 12 c that extends through the elongate member 12 and the handle 14 for receiving a guidewire. Since the guidewire is preferably positioned within the inner lumen 12 c during use of the device 10, the device 10 can optionally include a locking mechanism 24 formed thereon for maintaining a guidewire in a fixed position relative to the elongate member 12. While a variety of locking mechanisms known in the art can be used, FIGS. 1 and 3A-3B illustrate an exemplary embodiment of a locking mechanism 24 that is formed on the handle 14 of the elongate member 12. As shown, the locking mechanism 24 is in the form of a set screw 28 that is disposed within a threaded bore 26 formed in handle 14. The threaded bore 26 is in communication with the inner lumen 12 c of the elongate member 12. In use, as shown in FIG. 3B, the set screw 28 can be threaded into the threaded bore 26 to engage a guidewire 16 that is disposed within the inner lumen 12 c of the elongate member 12, thereby locking the guidewire 16 in a fixed position.
The tunnel notcher and guidewire delivery device 10 of the present invention can be used in a variety of medical procedures for preparing a bone tunnel for receiving a fastening element, such as a bone screw, to secure an anchoring member disposed within the bone tunnel. In an exemplary embodiment, however, the device 10 is used to prepare a bone tunnel for anchoring a ligament therein, and in particular for arthroscopic femoral fixation of an anterior cruciate ligament (ACL) graft, as shown in FIGS. 4A-4E. While various graft ligaments can be used, the graft ligament (not shown) is typically prepared by separating the graft into four tendon bundles, each of which is prepared by whip stitching a length of suture thereto. Two anchoring members, such as bone plugs, are then attached at each end of the ligament.
An incision is then made, following medically acceptable patient preparation and anesthetization, near the end of the tibial bone 52 below the patella, and a bone tunnel 56 is formed through the tibial and femoral bones 52, 54. For illustration purposes, FIGS. 4A-4E only show a bone tunnel 56 formed in the femoral bone 54, however, a person skilled in the art will appreciate that the device and methods of the present invention can be inserted through either or both of the femoral and tibial bones. One end of the graft ligament, i.e., the leading end, is then passed through the tibial tunnel into the femoral tunnel 56, and the other end of the graft ligament, i.e., the trailing end, remains outside of the tibial bone tunnel, thus permitting access through the tibial tunnel to the femoral tunnel 56. Again, for illustration purposes, FIGS. 4A-4E only show a bone plug 53 disposed within the femoral bone tunnel 56, and a graft ligament is not shown.
In preparation for use, a guidewire 16 is inserted through the device 10 of the present invention, preferably such that a portion of the guidewire 16 extends from the distal end 12 b of the elongate member 12 to facilitate insertion of the distal tip 20 of the device 10 into the bone tunnel 56 between the bone plug 53 and a sidewall of the bone tunnel 56. The guidewire 16 is preferably locked in fixed position by rotating the set screw 28 of the locking mechanism 24. Since most guidewires are relatively flexible, it is preferable to only have a small portion of the guidewire 16 extend from the distal end 12 b of the elongate member 12 to provide rigidity to the guidewire 16.
The device 10 can then be inserted through the tibial bone tunnel 56 to position the tapered tip 20 of the elongate member 12 between the bone plug 53 and the femoral bone tunnel 56, as illustrated in FIGS. 4B and 4C. A mallet or other impacting tool can optionally be used to further impact the device 10 to advance it into the area between the bone plug 53 and the bone tunnel 56 to a desired depth. The radio-opaque markings 22 near the distal end 12 b of the elongate member 12 can be used to indicate when the device 10 is at the correct depth.
Once properly positioned, the device 10 is partially rotated about its longitudinal axis L such that cutting edge 18 a of the cutting element 18 moves in a semi-circular direction, thereby removing a portion of bone to create a notch 58. As shown in FIG. 4D, the notch 58 is formed within or adjacent to an opening of the bone tunnel 56. After creating the notch 58, the locking mechanism 24 is released by rotating the set screw 28 in the opposite direction, allowing the device 10 to be removed while leaving the guidewire 16 positioned within the bone tunnel 56, as illustrated by FIG. 4D, between the bone plug 53 and adjacent to the notch 58.
A fastening element, such as a bone screw 80, as shown in FIG. 4E, can then be delivered by sliding the screw 80 along the guidewire 16 toward the notch 58. An insertion tool or driver mechanism 70, as shown, can optionally be used to advance the screw 80 along the guidewire 16, and to thread the screw 80 into the bone tunnel 56. When the bone screw 80 is positioned adjacent to the bone tunnel 56, the notch 58 will allow the threads of the bone screw 80 to engage the bone, and thus further rotation of the screw 80 will secure the bone plug 53 in the bone tunnel 56.
One skilled in the art will appreciate further features and advantages of the invention based on the above-described embodiments. Accordingly, the invention is not to be limited by what has been particularly shown and described, except as indicated by the appended claims. All publications and references cited herein are expressly incorporated herein by reference in their entirety.

Claims (13)

What is claimed is:
1. A method for preparing a bone tunnel, comprising:
inserting a bone plug into a bone tunnel;
positioning a tunnel notcher and guidewire delivery device between the bone plug and a sidewall of the bone tunnel, the tunnel notcher comprising an elongate member with an inner lumen extending therethrough, a guidewire passing through the lumen, and further comprising a cutting element having a distal bone cutting edge disposed proximal to a distal portion of the elongate member, the cutting edge facing distally and being entirely spaced away from and not normal to the elongate member;
removing a portion of bone with the cutting edge to create a notch in an opening of a bone tunnel, the notch being effective to facilitate placement of a bone screw within the bone tunnel for securing the bone plug therein; and
removing the tunnel notcher and guidewire delivery device such that the guidewire remains positioned between the bone plug and the bone tunnel adjacent to the notch.
2. The method of claim 1, wherein the notch has a substantially semi-circular shape.
3. The method of claim 1, further comprising delivering a bone screw along the guidewire to engage bone at the notch, and to secure the bone plug within the bone tunnel.
4. The method of claim 1, wherein the guidewire is disposed within the tunnel notcher and guidewire delivery device during positioning of the tunnel notcher and guidewire delivery device between the bone plug and the bone tunnel.
5. The method of claim 4, wherein the guidewire is in a releasably fixed position with respect to the tunnel notcher and guidewire delivery device during positioning of the tunnel notcher and guidewire delivery device between the bone plug and the bone tunnel.
6. The method of claim 5, further comprising a locking mechanism formed on the tunnel notcher and guidewire delivery device and adapted to releasably fix the guidewire with respect to the tunnel notcher and guidewire delivery device.
7. The method of claim 6, wherein the locking mechanism is coupled to a handle formed on the tunnel notcher and guidewire delivery device.
8. The method of claim 7, wherein the locking mechanism comprises a threaded member disposed within a threaded bore formed in the handle, the threaded bore being in communication with an inner lumen formed in the tunnel notcher and guidewire delivery device and containing the guidewire.
9. The method of claim 1, wherein a distal portion of the tunnel notcher and guidewire delivery device is substantially tapered to allow the distal portion to be positioned between the bone plug and the sidewall of the bone tunnel.
10. The method of claim 1, wherein the cutting element extends distally outward from the tunnel notcher.
11. The method of claim 10, wherein the cutting element is substantially wedge-shaped and includes a distal-facing surface that is disposed at an acute angle with respect to a longitudinal axis of the tunnel notcher.
12. The method of claim 11, wherein the angle is less than 90°.
13. The method of claim 1, further comprising a plurality of indicia formed on a distal portion of the tunnel notcher and guidewire delivery device and adapted to indicate a depth of the tunnel notcher and guidewire delivery device within a bone tunnel.
US13/282,950 2004-03-05 2011-10-27 Tunnel notcher and guidewire delivery device Active 2027-03-14 US9265519B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/282,950 US9265519B2 (en) 2004-03-05 2011-10-27 Tunnel notcher and guidewire delivery device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/708,467 US8070750B2 (en) 2004-03-05 2004-03-05 Tunnel notcher and guidewire delivery device
US13/282,950 US9265519B2 (en) 2004-03-05 2011-10-27 Tunnel notcher and guidewire delivery device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/708,467 Division US8070750B2 (en) 2004-03-05 2004-03-05 Tunnel notcher and guidewire delivery device

Publications (2)

Publication Number Publication Date
US20120041442A1 US20120041442A1 (en) 2012-02-16
US9265519B2 true US9265519B2 (en) 2016-02-23

Family

ID=34749176

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/708,467 Active 2026-09-02 US8070750B2 (en) 2004-03-05 2004-03-05 Tunnel notcher and guidewire delivery device
US13/282,950 Active 2027-03-14 US9265519B2 (en) 2004-03-05 2011-10-27 Tunnel notcher and guidewire delivery device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/708,467 Active 2026-09-02 US8070750B2 (en) 2004-03-05 2004-03-05 Tunnel notcher and guidewire delivery device

Country Status (6)

Country Link
US (2) US8070750B2 (en)
EP (4) EP1570793B1 (en)
JP (1) JP4762575B2 (en)
AU (1) AU2005200673B2 (en)
CA (2) CA2637682C (en)
DE (1) DE602005007078D1 (en)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8070750B2 (en) 2004-03-05 2011-12-06 Depuy Mitek, Inc. Tunnel notcher and guidewire delivery device
US8167944B2 (en) 2004-10-20 2012-05-01 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US8317864B2 (en) 2004-10-20 2012-11-27 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US7763074B2 (en) 2004-10-20 2010-07-27 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US8409282B2 (en) 2004-10-20 2013-04-02 Vertiflex, Inc. Systems and methods for posterior dynamic stabilization of the spine
US9119680B2 (en) 2004-10-20 2015-09-01 Vertiflex, Inc. Interspinous spacer
US8128662B2 (en) 2004-10-20 2012-03-06 Vertiflex, Inc. Minimally invasive tooling for delivery of interspinous spacer
US8273108B2 (en) 2004-10-20 2012-09-25 Vertiflex, Inc. Interspinous spacer
US8152837B2 (en) 2004-10-20 2012-04-10 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US9161783B2 (en) 2004-10-20 2015-10-20 Vertiflex, Inc. Interspinous spacer
US9023084B2 (en) 2004-10-20 2015-05-05 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for stabilizing the motion or adjusting the position of the spine
WO2009086010A2 (en) 2004-12-06 2009-07-09 Vertiflex, Inc. Spacer insertion instrument
DE102006037602A1 (en) * 2006-08-10 2008-02-21 Cas Innovations Ag Auxiliary device for producing a mechanical connection between a medical implant and a tissue part of a patient
US8845726B2 (en) 2006-10-18 2014-09-30 Vertiflex, Inc. Dilator
WO2008092029A2 (en) 2007-01-24 2008-07-31 Access Scientific, Inc. Access device
WO2008130564A1 (en) 2007-04-16 2008-10-30 Vertiflex Inc. Interspinous spacer
US8105286B2 (en) 2007-04-18 2012-01-31 Access Scientific, Inc. Access device
EP2486880A3 (en) * 2007-04-18 2013-01-16 Access Scientific, Inc. Access device
US8740956B2 (en) 2008-01-10 2014-06-03 J. Scott Smith Pedicle screw
US9668775B2 (en) 2008-06-03 2017-06-06 Jeffrey Scott Smith Pedicle screw
US8986318B2 (en) * 2008-06-03 2015-03-24 Jeffrey Scott Smith Pedicle depth measuring apparatus
AU2009206098B2 (en) 2008-01-15 2014-10-30 Vertiflex, Inc. Interspinous spacer
US8343161B2 (en) * 2008-02-21 2013-01-01 Covidien Lp Femoral guide for ACL repair having multiple lumen
US20090216243A1 (en) * 2008-02-21 2009-08-27 Paul Re Guide for creating femoral tunnel during acl reconstruction
US8282647B2 (en) * 2008-02-21 2012-10-09 Tyco Healthcare Group Lp Femoral guide for ACL repair having adjustable offset
US8430884B2 (en) 2008-02-21 2013-04-30 Covidien Lp Femoral guide for ACL repair having selectively deployable femoral surface engagement member
US8430883B2 (en) * 2008-02-21 2013-04-30 Covidien Lp Femoral guide for ACL repair having reduced profile for left/right knee configurations
US8734461B2 (en) * 2008-03-04 2014-05-27 Smith & Nephew, Inc. Device and method for use during ligament reconstruction surgery
US9248023B2 (en) 2008-12-02 2016-02-02 Smith & Nephew, Inc. Iliac canal prosthesis
US8911474B2 (en) 2009-07-16 2014-12-16 Howmedica Osteonics Corp. Suture anchor implantation instrumentation system
CA2713309C (en) 2009-08-20 2013-07-02 Howmedica Osteonics Corp. Flexible acl instrumentation, kit and method
US8956327B2 (en) 2010-02-08 2015-02-17 Access Scientific, Llc Access device
AU2011227190B2 (en) 2010-03-18 2016-04-14 Smith & Nephew, Inc. A device for use during ligament reconstruction surgery
ES2399785B1 (en) * 2010-08-06 2014-02-25 Tomas Ramos Marin USEFUL FOR OBTAINING BONE TUNNELS.
US8911445B2 (en) * 2011-01-28 2014-12-16 DePuy Sysnthes Products, LLC Reamer guide systems and methods of use
JP5774724B2 (en) * 2011-01-28 2015-09-09 シンセス・ゲーエムベーハーＳｙｎｔｈｅｓ ＧｍｂＨ Reamer guide system
US9795398B2 (en) 2011-04-13 2017-10-24 Howmedica Osteonics Corp. Flexible ACL instrumentation, kit and method
US8932295B1 (en) 2011-06-01 2015-01-13 Surgical Device Exchange, LLC Bone graft delivery system and method for using same
US20130066149A1 (en) * 2011-09-12 2013-03-14 A.M. Surgical, Inc. Endoscopic hook blade and use thereof
US9381021B2 (en) * 2011-09-23 2016-07-05 Biomet Sports Medicine, Llc Method and apparatus for forming a hole in bone during a surgical procedure
US9445803B2 (en) 2011-11-23 2016-09-20 Howmedica Osteonics Corp. Filamentary suture anchor
US9808242B2 (en) 2012-04-06 2017-11-07 Howmedica Osteonics Corp. Knotless filament anchor for soft tissue repair
US20130289399A1 (en) * 2012-04-27 2013-10-31 Vertiflex, Inc. Decompression systems and methods of using the same
US8821494B2 (en) 2012-08-03 2014-09-02 Howmedica Osteonics Corp. Surgical instruments and methods of use
US9078740B2 (en) 2013-01-21 2015-07-14 Howmedica Osteonics Corp. Instrumentation and method for positioning and securing a graft
US9402620B2 (en) 2013-03-04 2016-08-02 Howmedica Osteonics Corp. Knotless filamentary fixation devices, assemblies and systems and methods of assembly and use
US9326777B2 (en) * 2013-03-14 2016-05-03 Amendia, Inc. Decorticating surgical instruments and guidance systems with tactile feedback
US8945137B1 (en) 2013-03-15 2015-02-03 Surgical Device Exchange, LLC Bone graft delivery system and method for using same
US9668881B1 (en) 2013-03-15 2017-06-06 Surgentec, Llc Bone graft delivery system and method for using same
US9675303B2 (en) 2013-03-15 2017-06-13 Vertiflex, Inc. Visualization systems, instruments and methods of using the same in spinal decompression procedures
US9566087B2 (en) 2013-03-15 2017-02-14 Access Scientific, Llc Vascular access device
US10292694B2 (en) 2013-04-22 2019-05-21 Pivot Medical, Inc. Method and apparatus for attaching tissue to bone
US10524772B2 (en) 2014-05-07 2020-01-07 Vertiflex, Inc. Spinal nerve decompression systems, dilation systems, and methods of using the same
US10045803B2 (en) 2014-07-03 2018-08-14 Mayo Foundation For Medical Education And Research Sacroiliac joint fusion screw and method
US9883898B2 (en) 2014-08-07 2018-02-06 Jeffrey Scott Smith Pedicle screw with electro-conductive coating or portion
US9986992B2 (en) 2014-10-28 2018-06-05 Stryker Corporation Suture anchor and associated methods of use
US10080583B2 (en) 2014-12-12 2018-09-25 Depuy Mitel, Llc Dilator for accessing a joint space
US10238507B2 (en) 2015-01-12 2019-03-26 Surgentec, Llc Bone graft delivery system and method for using same
US11027099B2 (en) 2015-04-30 2021-06-08 Smiths Medical Asd, Inc. Vascular access device
US10413332B2 (en) 2016-04-25 2019-09-17 Imds Llc Joint fusion implant and methods
US10751071B2 (en) 2016-04-25 2020-08-25 Imds Llc Joint fusion instrumentation and methods
GB2565598A (en) * 2017-08-18 2019-02-20 Hoogland Spine Products Gmbh Surgical reamer for removing bone
US10569059B2 (en) 2018-03-01 2020-02-25 Asspv, Llc Guidewire retention device
US11116647B2 (en) 2018-04-13 2021-09-14 Surgentec, Llc Bone graft delivery system and method for using same
US10687828B2 (en) 2018-04-13 2020-06-23 Surgentec, Llc Bone graft delivery system and method for using same
US11510686B2 (en) 2018-07-05 2022-11-29 Conmed Corporation Retrograde drilling device
US12102542B2 (en) 2022-02-15 2024-10-01 Boston Scientific Neuromodulation Corporation Interspinous spacer and methods and systems utilizing the interspinous spacer

Citations (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571400A (en) 1896-11-17 Mortising-chisel
US1166723A (en) 1915-01-14 1916-01-04 Wiley Stark Attachment for pneumatic machine-riveters.
US1280785A (en) 1918-05-31 1918-10-08 George Mcconnell Woodworking-tool.
US1289722A (en) 1918-10-03 1918-12-31 Charles Fournier Ship-reaming tool.
US1418125A (en) 1921-08-26 1922-05-30 William P Carroll Metal-working tool
US1471062A (en) 1923-03-24 1923-10-16 Victor T Riblett Flue tool
US1598458A (en) 1924-12-12 1926-08-31 John P Sullivan Tool for removing boiler tubes
US1781863A (en) 1928-03-22 1930-11-18 Shoemaker William Walter Cutting tool
US1875612A (en) 1930-06-09 1932-09-06 Henry Beinert Wrecking implement
US2009795A (en) 1934-01-23 1935-07-30 Joyce K Graham Chipping and cutting tool
US2250434A (en) 1937-02-25 1941-07-22 Dugaw Eugene Combination nail set and patch hole making tool
US2465305A (en) 1944-12-09 1949-03-22 A P Parts Corp Cutting instrument
US3043002A (en) 1959-10-05 1962-07-10 Lowell N Brown Method and tools for repairing muffler assemblies
US3088454A (en) 1960-01-06 1963-05-07 Wallace B Shute Surgical instrument
US3554192A (en) 1967-07-24 1971-01-12 Orthopedic Equipment Co Medullary space drill
US3698085A (en) 1970-12-24 1972-10-17 Jimmy C Ray Sleeve slitter
US4573448A (en) 1983-10-05 1986-03-04 Pilling Co. Method for decompressing herniated intervertebral discs
US4586496A (en) 1984-03-05 1986-05-06 Waldemar Link Gmbh & Co. Surgical chisel
US4603694A (en) 1983-03-08 1986-08-05 Richards Medical Company Arthroscopic shaver
US4881537A (en) 1988-08-10 1989-11-21 Charles Henning Surgical instrument, and methods for forming a channel in a femoral condyle including reconstructing an anterior cruciate ligament
US4978349A (en) 1989-08-03 1990-12-18 Synthes (U.S.A.) Fixation plate
JPH0349907A (en) 1989-07-17 1991-03-04 Toyo Eitetsuku Kk Slicing device
US5122146A (en) 1988-02-04 1992-06-16 Pfizer Hospital Products Group, Inc. Apparatus for reducing a fracture
EP0508710A1 (en) 1991-04-10 1992-10-14 Linvatec Corporation Surgical reamer
US5374269A (en) 1990-01-31 1994-12-20 American Cyanamid Company Method and instruments for ACL reconstruction
US5437675A (en) 1993-06-11 1995-08-01 Wilson; Franklin D. Polygonal bone punch
US5632747A (en) 1995-03-15 1997-05-27 Osteotech, Inc. Bone dowel cutter
US5643273A (en) 1995-02-17 1997-07-01 Clark; Ron ACL bone tunnel projection drill guide and method for its use
US5645545A (en) 1995-08-14 1997-07-08 Zimmer, Inc. Self reaming intramedullary nail and method for using the same
US5658289A (en) 1993-09-24 1997-08-19 Linvatec Corporation Ligament graft protection apparatus and method
US5807276A (en) 1995-03-09 1998-09-15 Russin; Lincoln David Biopsy device and method
US5868684A (en) 1993-12-22 1999-02-09 Radi Medical Systems Ab Device for hard tissue biopsy sampling
US5908423A (en) 1993-05-27 1999-06-01 Howmedica, Inc. Flexible medullary reaming system
US5908422A (en) 1997-01-13 1999-06-01 Synthes (U.S.A) Helical osteosynthetic implant
US5941883A (en) 1996-06-04 1999-08-24 Sklar; Joseph H. Apparatus and method for reconstructing ligaments
US6036695A (en) 1996-02-22 2000-03-14 Smith & Nephew, Inc. Surgical instrument
US6110175A (en) 1999-01-20 2000-08-29 Synthes (Usa) Surgical chisel and method of using same
US6123710A (en) 1995-04-12 2000-09-26 Smith & Nephew, Inc. Process and article for knee reconstruction
US6270501B1 (en) 1999-11-08 2001-08-07 The Regents Of The University Of Michigan Surgical method and apparatus and cannulated scalpel for use therein
US20010016746A1 (en) 1992-02-19 2001-08-23 Mcguire David A Femoral Guide and Methods of Precisely Forming Bone Tunnels in Cruciate Ligament Reconstruction of the Knee
US20020019637A1 (en) 1999-10-21 2002-02-14 George Frey Devices and techniques for a posterior lateral disc space approach
US20020032447A1 (en) 2000-09-01 2002-03-14 Stuart Weikel Tools and methods for creating cavities in bone
US20020042624A1 (en) 1998-07-17 2002-04-11 Johanson Mark A. Method and apparatus for harvesting and implanting bone plugs
US6409730B1 (en) 2000-05-31 2002-06-25 Synthes (Usa) Humeral spiral blade
US6540752B1 (en) 1999-11-01 2003-04-01 Greg Hicken Threaded bone tunnel dilator
US6770079B2 (en) 1999-03-16 2004-08-03 American Osteomedix, Inc. Apparatus and method for fixation of osteoporotic bone
US20040167527A1 (en) 2003-01-23 2004-08-26 Stryker Trauma Gmbh Bone cutting tool and method of use
US20050159676A1 (en) 2003-08-13 2005-07-21 Taylor James D. Targeted biopsy delivery system
US7041107B2 (en) 2002-04-22 2006-05-09 Inion Ltd. Instrument
US20070106174A1 (en) 2005-10-07 2007-05-10 Femspec Llc Intrauterine anesthetic applicator and cell collection device and method of use
US7473232B2 (en) 2006-02-24 2009-01-06 Boston Scientific Scimed, Inc. Obtaining a tissue sample
US8070750B2 (en) 2004-03-05 2011-12-06 Depuy Mitek, Inc. Tunnel notcher and guidewire delivery device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09149907A (en) * 1995-11-29 1997-06-10 Terumo Corp Bone fixing tool, and bone fixing system
WO2001057655A2 (en) * 2000-02-03 2001-08-09 Baylor College Of Medicine Methods and devices for intraosseous nerve ablation
US6840941B2 (en) * 2001-10-31 2005-01-11 Depuy Acromed, Inc. Vertebral endplate chisel

Patent Citations (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571400A (en) 1896-11-17 Mortising-chisel
US1166723A (en) 1915-01-14 1916-01-04 Wiley Stark Attachment for pneumatic machine-riveters.
US1280785A (en) 1918-05-31 1918-10-08 George Mcconnell Woodworking-tool.
US1289722A (en) 1918-10-03 1918-12-31 Charles Fournier Ship-reaming tool.
US1418125A (en) 1921-08-26 1922-05-30 William P Carroll Metal-working tool
US1471062A (en) 1923-03-24 1923-10-16 Victor T Riblett Flue tool
US1598458A (en) 1924-12-12 1926-08-31 John P Sullivan Tool for removing boiler tubes
US1781863A (en) 1928-03-22 1930-11-18 Shoemaker William Walter Cutting tool
US1875612A (en) 1930-06-09 1932-09-06 Henry Beinert Wrecking implement
US2009795A (en) 1934-01-23 1935-07-30 Joyce K Graham Chipping and cutting tool
US2250434A (en) 1937-02-25 1941-07-22 Dugaw Eugene Combination nail set and patch hole making tool
US2465305A (en) 1944-12-09 1949-03-22 A P Parts Corp Cutting instrument
US3043002A (en) 1959-10-05 1962-07-10 Lowell N Brown Method and tools for repairing muffler assemblies
US3088454A (en) 1960-01-06 1963-05-07 Wallace B Shute Surgical instrument
US3554192A (en) 1967-07-24 1971-01-12 Orthopedic Equipment Co Medullary space drill
US3698085A (en) 1970-12-24 1972-10-17 Jimmy C Ray Sleeve slitter
US4603694A (en) 1983-03-08 1986-08-05 Richards Medical Company Arthroscopic shaver
US4573448A (en) 1983-10-05 1986-03-04 Pilling Co. Method for decompressing herniated intervertebral discs
US4586496A (en) 1984-03-05 1986-05-06 Waldemar Link Gmbh & Co. Surgical chisel
US5122146A (en) 1988-02-04 1992-06-16 Pfizer Hospital Products Group, Inc. Apparatus for reducing a fracture
US4881537A (en) 1988-08-10 1989-11-21 Charles Henning Surgical instrument, and methods for forming a channel in a femoral condyle including reconstructing an anterior cruciate ligament
JPH0349907A (en) 1989-07-17 1991-03-04 Toyo Eitetsuku Kk Slicing device
US4978349A (en) 1989-08-03 1990-12-18 Synthes (U.S.A.) Fixation plate
US5374269A (en) 1990-01-31 1994-12-20 American Cyanamid Company Method and instruments for ACL reconstruction
EP0508710A1 (en) 1991-04-10 1992-10-14 Linvatec Corporation Surgical reamer
US20010016746A1 (en) 1992-02-19 2001-08-23 Mcguire David A Femoral Guide and Methods of Precisely Forming Bone Tunnels in Cruciate Ligament Reconstruction of the Knee
US5908423A (en) 1993-05-27 1999-06-01 Howmedica, Inc. Flexible medullary reaming system
US5437675A (en) 1993-06-11 1995-08-01 Wilson; Franklin D. Polygonal bone punch
US5658289A (en) 1993-09-24 1997-08-19 Linvatec Corporation Ligament graft protection apparatus and method
US5868684A (en) 1993-12-22 1999-02-09 Radi Medical Systems Ab Device for hard tissue biopsy sampling
US5643273A (en) 1995-02-17 1997-07-01 Clark; Ron ACL bone tunnel projection drill guide and method for its use
US5807276A (en) 1995-03-09 1998-09-15 Russin; Lincoln David Biopsy device and method
US5632747A (en) 1995-03-15 1997-05-27 Osteotech, Inc. Bone dowel cutter
US6123710A (en) 1995-04-12 2000-09-26 Smith & Nephew, Inc. Process and article for knee reconstruction
US5645545A (en) 1995-08-14 1997-07-08 Zimmer, Inc. Self reaming intramedullary nail and method for using the same
US6036695A (en) 1996-02-22 2000-03-14 Smith & Nephew, Inc. Surgical instrument
US5941883A (en) 1996-06-04 1999-08-24 Sklar; Joseph H. Apparatus and method for reconstructing ligaments
US20020173795A1 (en) 1996-06-04 2002-11-21 Sklar Joseph H. Apparatus and method for reconstructing ligaments
US5908422A (en) 1997-01-13 1999-06-01 Synthes (U.S.A) Helical osteosynthetic implant
US20020042624A1 (en) 1998-07-17 2002-04-11 Johanson Mark A. Method and apparatus for harvesting and implanting bone plugs
US6110175A (en) 1999-01-20 2000-08-29 Synthes (Usa) Surgical chisel and method of using same
US6770079B2 (en) 1999-03-16 2004-08-03 American Osteomedix, Inc. Apparatus and method for fixation of osteoporotic bone
US20020019637A1 (en) 1999-10-21 2002-02-14 George Frey Devices and techniques for a posterior lateral disc space approach
US6540752B1 (en) 1999-11-01 2003-04-01 Greg Hicken Threaded bone tunnel dilator
US6270501B1 (en) 1999-11-08 2001-08-07 The Regents Of The University Of Michigan Surgical method and apparatus and cannulated scalpel for use therein
US6409730B1 (en) 2000-05-31 2002-06-25 Synthes (Usa) Humeral spiral blade
US20020032447A1 (en) 2000-09-01 2002-03-14 Stuart Weikel Tools and methods for creating cavities in bone
US7041107B2 (en) 2002-04-22 2006-05-09 Inion Ltd. Instrument
US20040167527A1 (en) 2003-01-23 2004-08-26 Stryker Trauma Gmbh Bone cutting tool and method of use
US20050159676A1 (en) 2003-08-13 2005-07-21 Taylor James D. Targeted biopsy delivery system
US8070750B2 (en) 2004-03-05 2011-12-06 Depuy Mitek, Inc. Tunnel notcher and guidewire delivery device
US20070106174A1 (en) 2005-10-07 2007-05-10 Femspec Llc Intrauterine anesthetic applicator and cell collection device and method of use
US7473232B2 (en) 2006-02-24 2009-01-06 Boston Scientific Scimed, Inc. Obtaining a tissue sample

Also Published As

Publication number Publication date
US20050203523A1 (en) 2005-09-15
AU2005200673B2 (en) 2007-02-15
EP2292162A1 (en) 2011-03-09
DE602005007078D1 (en) 2008-07-10
CA2637682A1 (en) 2005-09-05
JP2005246067A (en) 2005-09-15
EP1941841B1 (en) 2012-08-29
JP4762575B2 (en) 2011-08-31
EP2292162B1 (en) 2012-06-06
EP2286744B8 (en) 2013-02-13
US20120041442A1 (en) 2012-02-16
CA2637682C (en) 2012-05-22
US8070750B2 (en) 2011-12-06
EP1941841A1 (en) 2008-07-09
EP1570793B1 (en) 2008-05-28
EP1570793A3 (en) 2006-04-12
CA2499437A1 (en) 2005-09-05
EP2286744B1 (en) 2013-01-02
CA2499437C (en) 2008-11-04
EP2286744A1 (en) 2011-02-23
EP1570793A2 (en) 2005-09-07
AU2005200673A1 (en) 2005-09-22

Similar Documents

Publication Publication Date Title
US9265519B2 (en) Tunnel notcher and guidewire delivery device
JP4315804B2 (en) Apparatus and method for reshaping a ligament
EP2092901B1 (en) Guide for creating femoral tunnel during ACL reconstruction
US8292894B2 (en) Device for orienting the tibial tunnel position during an ACL reconstruction
US20030130735A1 (en) Graft device and methods of use
US8323289B2 (en) Tibial guide for ACL repair having left/right docking configuration
US7588586B2 (en) Tissue fixation device
US20120265298A1 (en) Method for creating a double bundle ligament orientation in a single bone tunnel during knee ligament reconstruction
US20090018654A1 (en) Double socket acl reconstruction
JPH07163599A (en) Ligamentum implant protecting device, device for moving ligamentum implant fixer/protecting ligamentum implant, screw driver for operation, and method for protecting ligamentum implant from screw
AU2012213932A1 (en) Cross pinnig guide devices and methods
US8430884B2 (en) Femoral guide for ACL repair having selectively deployable femoral surface engagement member
US20100049202A1 (en) Femoral guide for acl repair having reduced profile for left/right knee configurations
US20100049198A1 (en) Tibial guide for acl repair having off-axis guide wire arrangement
US8403943B2 (en) Insertion system for implanting a medical device and surgical methods
Re Stratis ST Femoral Fixation System
Da Silva et al. SURGICAL GOALS

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8